Intel Corporation

Christopher Van Beek

Michael T Klinglesmith

Lily Pao Looi

David M Lee

Sin Sim Tan

Mohan Nair

Chih-Cheh Chen

Itay Franko

John A Urbanski

Peter J Elardo

John Zulauf

Devices and method with hardware configured to support phantom register programming. Where phantom register programming allows a device driver for an endpoint device to program multicast registers in the device without support of the operating system.

Multicast support on a switch for PCIe endpoint devices

A computer system including a slice-addressable multi-port memory array is disclosed. The slice-addressable multi-port memory array provides a mechanism for efficient data merging in a memory controller in accordance with an associated array of slice-enable bits. Each slice of the memory array is individually designated by a slice-enable bit, and only those slices of a word line enabled for writing that are designated by a slice-enable bit are modified during a write operation. In a subsequent write-merge operation, the slices of the word line enabled for writing that were not designated by slice-enable bits during the write operation are modified, and the slices that were modified during the preceding write operation are unaffected, thereby providing for efficient merger of data from the write operation and data from the write-merge operation in a single word line. Also provided is a method of preserving cache coherency in a computer system when a hit on a modified line in a cache is detected during a memory-write operation. The method includes setting a slice enable bit associated with each slice of the cache line modified by the memory write operation; writing data to slices of a word line associated with the set slice enable bits in the slice-addressable random access memory buffer; and write-merging data from the modified cache line to slices of the word line not associated with the set slice-enable bits in the slice-addressable random access memory buffer.

Controller that supports data merging utilizing a slice addressable

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Cornelius, OR, United States of America

Christopher Van Beek